But the 34-year-old today refuted allegations he had attacked the bus and said he was trying to stop the vehicle so the police could be called.

Callum said he and son Alex were walking up Easter Road towards the ground ahead of the match when the bus stopped next to them and opened its doors.

A Rangers fan onboard is then alleged to have spat into the crowd - hitting 10-year-old Alex on the body.

Callum explained: “We had just left the pub down the road and we were going up Easter Road just about to turn into Albion Road.

“I was chatting with my son when we noticed the bus pull up. They were all banging on the windows but then the door opened and we kind of thought ‘What on earth is going to happen here’.

“I saw that a guy spat out the bus and after we’d walked a few more steps my son said, ‘Dad, that spit hit me’. It was on his coat.

“I looked around for a policeman and there was absolutely none. We walked to the junction at the traffic lights and could see a van about 200 yards up the road. My dad said he’d go and get them.

“The bus was stopped at the lights so I went to the front of the bus and I went to the driver's side.

“I was trying to shout through the window ‘Can you stop? The police are coming’. But he was just shaking his head at me.

“Then, as you can see in the video, he starts to move very slowly at first while I’m still shouting at him to stop for the police but then he accelerates.

“I phoned the police after the game and they took a report. They’re coming to see me during the week.”

Callum Laidlaw insists he was only trying to halt the bus until police arrived (Photo: Twitter)

Callum, who is from Rosyth, Fife, added: “In the video, you can see a can getting chucked over the top of the bus and obviously, I totally condemn that.

“I don’t agree with stuff getting chucked at the buses especially if there’s kids on them.

“But then you can see a Buckfast bottle getting chucked out the driver’s window.

“The driver deliberately accelerated and was completely out of order. For one, he opened the door causing incitement and then chose to accelerate.

“Maybe he thought he was going to get in trouble because there was clearly alcohol on the bus when it’s not allowed.”

He has also raised concerns about the bus being on Easter Road in the first place as they usually arrive via London Road and are guided to the stadium by police.

The lifelong Hibs fan has also been forced to lock down his Twitter account after having abuse hurled at him and his family.

He said: “They’re sharing pictures of me with my 12-week-old child and there’s comments saying ‘This guy should have had his throat slit at birth’. I can’t believe how personal it’s getting.

‘Alex was a bit shaken at the time and concerned when he saw me in front of the bus. I avoided taking him to Hibs games when they played the bigger teams because of incidents like this for years.”

Chief Inspector Richard Horan of Police Scotland said: "We are currently investigating a report of a crime that involved a small number of fans ahead of Sunday's match (Nov 1) between Hibernian and Rangers.

"Shortly before 12:20pm an unknown male, who it is believed to had been travelling on a Rangers supporters' bus, spat on a young Hibernian fan as he walked on Easter Road.

"This then led to a confrontation between fans on the street and those within the bus.

"Our enquiries into the full set of circumstances are ongoing however I would like to reassure the public that we will robustly investigate this incident to identify the offender."